Serial data direct memory access system

摘要

A serial data direct memory access system including a control circuit that shares control with a master computer of an interface bus of a DMA storage system. Serial data is supply to the control circuit via a fiber optic cable. The control circuit employs means responsive to status code bits of the message words for gaining control from the master computer of the interface bus and for directly accessing the computer controlled bus memory storage system. This system is capable of handling data streams of infinite lengths. Also, means are provided for preventing bit errors from interfering with critical message words.